package a01生产者消费者;

import com.rabbitmq.client.*;

public class Consumer {
    private final static String QUEUE_NAME = "hello";

    public static void main(String[] args) throws Exception {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("82.156.7.227");
        factory.setUsername("admin");
        factory.setPassword("123");
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        System.out.println("等待接收消息.........");
        // 推送的消息如何进行消费的接口回调
        DeliverCallback deliverCallback = (consumerTag, delivery) -> {
            String message = new String(delivery.getBody());
            System.out.println(message);
        };

        // 取消消费的一个回调接口 如在消费的时候队列被删除掉了
        CancelCallback cancelCallback = (consumerTag) -> {
            System.out.println("消息消费被中断");
        };
/**
 * 消费者消费消息
 * 1.消费哪个队列
 * 2.消费成功之后是否要自动应答 true 代表自动应答 false 手动应答
 * 3.消费者未成功消费的回调
 */
        channel.basicConsume(QUEUE_NAME, true, deliverCallback, cancelCallback);
    }
}